As a verb, to preserve food is to process it to extend it's useful life. To conserve is to use it responsibly now so that enough remains later.

作为动词，preserve food 意思是储存、延长保质期。conserve 意为有节制的使用，以便使用更长时间。

Preservation is associated with the protection of buildings, objects.

Conservation is generally asaociated with the protection of natural resources.

Preservation （保护）常用来描述到对建筑、物体的保护。

Conservation（保护）常关系到对自然资源的保护（可持续发展）。

Conserve:

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Preserve:

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